摘要
目的探讨微觉醒和低氧血症与阻塞性睡眠呼吸暂停低通气综合征(OSAHS)患者发生高血压的相关性及两者在发病机制中的地位。方法测定63例OSAHS、70例OSAHS合并高血压患者的清晨血压、睡眠构成比、微觉醒指数、呼吸暂停低通气指数(AHI)、血氧饱和度低于90%的时间(SLT90%)及氧减饱和度指数。并将OSAHS合并高血压患者的血压分别与年龄、性别、体块指数(BMI)、AHI、微觉醒指数、SLT90%、清醒时间、快动眼睡眠时间、1期睡眠时间、2期睡眠时间、深睡眠期时间(3+4期)和氧减饱和度指数作多元线性回归分析。结果OSAHS合并高血压患者的SLT90%、氧减饱和度指数、微觉醒指数较OSAHS患者显著增加(均P<0.05)。导致OSAHS患者合并高血压的第一重要因素为微觉醒指数(SBP:r=0.54,P<0.01;DBP:r=0.42,P<0.05),第二重要因素为SLT90%(SBP:r=0.45,P<0.05;DBP:r=0.35,P<0.05)。结论OSAHS患者存在着明显的睡眠结构紊乱,合并发生高血压时,发病机制中首要的是微觉醒,其次是低氧血症。
Objective To investigate the correlation of hypertension with hypoxia and arousal in patients with obstructive sleep apnea-hypopnean syndrome (OSAHS). Methods The study included 133 OSAHS patients with or without hypertension. Morning blood pressure, arousal index, time length of nocturnal oxygen saturation 〈90%(SLT90%) were measured in these patients. Multiple stepwise regression analysis was performed to find the correlation between morning blood pressure and arousal index, SLT90%, AHI, age, body mass index (BMI). Results Arousal was primary independent factor leading to hypertension in OSAHS patients(SBP:r=0.54, P〈0.01;DBP:r=0.42,P〈0.05) and SLT90% was secondary independent factor(SBP:r=0.45,P〈0.05;DBP:r=0.35,P〈 0.05). Conclusion Disorder of sleep architecture and hypoxia are the most important mechanism in OSAHS patients with hypertension.
出处
《浙江医学》
CAS
2006年第2期93-95,共3页
Zhejiang Medical Journal